Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[twiglet]

because I'll be damned if I can find it! 

[Kevin Wood]

Ahh. yes. That reminds me. 

There is one. It's in my head.

All the information is here, if you do a search.

[twiglet]

I've been reading all the different threads Kevin, and have basically succeeded in confusing the hell out of myself! 

I've already got a towbar with single electrics, which works fine.  I'm now wanting to upgrade it to twin electrics...

Now I've read stuff about self switching split charge relays, rear fog cut-out, warning lights on the instrument cluster, etc, etc.... 

I want to do it properly, and I only want to do it once, so if someone can clarify things a bit that would be useful.  It could then maybe be used as part of a How-To eventually. 

[Kevin Wood]

If you're just upgrading to twin electrics then there's not much Omega specific information you need.

You need to run a 12v supply from the battery to the rear with a suitably rated cable and fuse and then use a caravan charge relay to provide the vatious supplies to the 12S socket from that.

There's plenty of information on the internet for wiring a 12S socket and relay, for example:

http://www.watling-towbars.co.uk/wiring_guides_watling_towbars.html

The best route to run the wire from the battery is probably through one of the large rubber grommets in the pollen filter compartment, then down behind the passenger kick panel, back to the rear of the car under the sill trim panels.

Use a size of wire that will comfortably cope with the current draw of your caravan, or the largest you can if you also want to charge the caravan batteries on the move. I used thinwall 40A cable with a 40A fuse in the engine bay for my amp in the boot. Excactly the same principle.

Here's a good supplier of all the bits you'll need: http://www.vehicle-wiring-products.eu

[MaxV6]

does this mean you no longer require my tow bar then James?

[twiglet]

does this mean you no longer require my tow bar then James?

No Max, I definately still want it!  This is for another one of my cars... 

I would have let you know if things had changed anyway mate. 

[Boiler Man]

From what I can remember, when I did my estate.

There is a factory fitted plug in the rear recess, there is on the facelift anyway, where the spare tyre is and I'm fairly sure there is a large brown wire among the loom to the plug.

But I could have my wires crossed on what your asking.

[geoffr70]

Someone provided this info for me when i did mine.

Vehicle harness

Black/blue - fog light
black/white - left indicator
red - permanent 12v
grey/black - left tail lamp
black/yellow - brake lamp
grey/red - right tail lamp
black/green - right indicator
brown/chassis - negative
white/black - reverse

towbar colours

blue - fog
green - r/h indicator
white - earth
black - l/h tail lamp
yellow - l/h indicator
brown - r/h tail lamp
red - brake lights
purple - fog

I fitted a 12n and just cut into the wires before the plug and used the terminal connectors, scotch locks are rubbish. I didn't take a feed from the cluster or the relay in/under the glovebox etc, or whatever it is you're meant to do to still allow the check control to still work, and eveything works fine when my trailers are connected up. You'll also need to wire in a repeater sounder according to the instructions you get with it (i.e. the right colour to wire, but that's easy).

HTH

[Andy B]

Someone provided this info for me when i did mine......
HTH

twiglet wants a second 12S grey socket for caravan battery charging & fridge

[geoffr70]

Someone provided this info for me when i did mine......
HTH

twiglet wants a second 12S grey socket for caravan battery charging & fridge

Oh well, it didn't say that in the post, or post heading. 

[Andy B]

Someone provided this info for me when i did mine......
HTH

twiglet wants a second 12S grey socket for caravan battery charging & fridge

Oh well, it didn't say that in the post, or post heading. 

.....

I've already got a towbar with single electrics, which works fine.  I'm now wanting to upgrade it to twin electrics...
 .....

 

[Entwood]

Someone provided this info for me when i did mine......
HTH

twiglet wants a second 12S grey socket for caravan battery charging & fridge

Oh well, it didn't say that in the post, or post heading. 

but in the third post down ......

as Andy has highlighted .....

all was explained .....

[twiglet]

Thanks for all the replies, and I apologise if I didn't make things 100% clear in my 1st post.  I realise that it's not always possible to read every post for every thread in detail.

Anyway, I have been off studying the info Kevin supplied, and I'm much more clued up on the 12S socket wiring now. I'm definately going to proceed with the self-switching relay idea.

Just a couple of questions now remain...

Pin 5 says optional warning light. What is this exactly? Is this related to the towbar light in the instrument cluster with no bulb in it? What does it warn of? How is it connected up?

Is it possible to get the brake light fail system that brings a message up on the screen to monitor the caravan brake lights as well?

TIA 

[Andy B]

.....
Is it possible to get the brake light fail system that brings a message up on the screen to monitor the caravan brake lights as well?

TIA 

If you wire your brake light via the trailer check relay control that lives either behind the glove box (facelift) or above the driver's feet (pre facelift) you will monitor your caravan's brake light.
http://www.omegaowners.com/forum/YaBB.pl?num=1175364013/0
relay is part number 90463123 

Never heard of the optional warning light.  Newer caravans have a 'habitation' relay that turns off all power points & lights etc in your van when attached to your car. 

[twiglet]

Cheers Andy 

Right, I'm getting there...

So to get the warning light on the dash working, I need to fit a bulb and change the flasher unit for a 4-pin jobbie.  Would I be right in thinking that I need an RFL6 as shown here...

http://www.vehicle-wiring-products.eu/VWP-onlinestore/relays/flashers.php ... correct?

To get the brakelight failiure to check the caravan lights, I need to plug in relay part no. 90463123 up behind the glovebox... correct?

The 12S socket will be wired through a self switching split charge relay like this...

http://www.ebay.co.uk/itm/12V-30AMP-SPLIT-CHARGE-RELAY-KIT-SELF-SWITCHING-/200677814285?pt=UK_Campervan_Caravan_Accessories&hash=item2eb954700d ... is this the one to go for?

Is there anything else I have missed, while I'm at it?